Global patent index - EP 1023729 A1

EP 1023729 A1 2000-08-02 - FRAME-BASED AUDIO CODING WITH VIDEO/AUDIO DATA SYNCHRONIZATION BY AUDIO SAMPLE RATE CONVERSION

Title (en)

FRAME-BASED AUDIO CODING WITH VIDEO/AUDIO DATA SYNCHRONIZATION BY AUDIO SAMPLE RATE CONVERSION

Title (de)

RAHMENBASIERTE AUDIOKODIERUNG MIT VIDEO/AUDIO-DATENSYNCHRONISIERUNG DURCH ABTASTRATENUMSETZUNG

Title (fr)

CODAGE AUDIO SUR LA BASE DE TRAMES AVEC UNE SYNCHRONISATION DE DONNEES VIDEO/AUDIO AU MOYEN D'UNE CONVERSION DE FREQUENCES ECHANTILLONS AUDIO

Publication

EP 1023729 A1 (EN)

Application

EP 98953541 A

Priority

  • US 9821764 W
  • US 95330697 A

Abstract (en)

[origin: WO9921189A1] Several audio signal processing techniques may be used in various combinations to improve the quality of audio represented by an information stream formed by splice editing two or more other information streams. The techniques are particularly useful in applications that bundle audio information with video information. In one technique, gain-control words conveyed with the audio information stream are used to interpolate playback sound levels across a splice. In another technique, special filterbanks or forms of TDAC transforms are used to suppress aliasing artifacts on either side of a splice. In yet another technique, special filterbanks or crossfade window functions are used to optimize the attenuation of spectral splatter created at a splice. In a further technique, audio sample rates are converted according to frame lengths and rates to allow audio information to be bundled with, for example, video information. In yet a further technique, audio blocks are dynamically aligned so that proper synchronization can be maintained across a splice. An example for 48 kHz audio with NTSC video is discussed.

IPC 1-7 (main, further and additional classification)

G11B 27/031; G11B 27/038

IPC 8 full level (invention and additional information)

G10L 11/00 (2006.01); G11B 20/10 (2006.01); G11B 27/02 (2006.01); G11B 27/031 (2006.01); G11B 27/038 (2006.01); H03M 7/30 (2006.01); H04B 14/04 (2006.01)

CPC (invention and additional information)

G11B 27/031 (2013.01); G11B 20/10527 (2013.01); G11B 27/038 (2013.01)

Citation (search report)

See references of WO 9921189A1

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB IT LI NL SE

EPO simple patent family

WO 9921189 A1 19990429; AT 210880 T 20011215; AU 1088499 A 19990510; AU 746613 B2 20020502; CA 2306112 A1 19990429; CA 2306112 C 20051220; DE 69802958 D1 20020124; DE 69802958 T2 20020620; DK 1023729 T3 20020325; EP 1023729 A1 20000802; EP 1023729 B1 20011212; ES 2165196 T3 20020301; JP 2001521310 A 20011106; JP 4126682 B2 20080730; US 5913190 A 19990615

INPADOC legal status

2016-10-25 [REG FR PLFP] FEE PAYMENT

- Ref Country Code: FR

- Ref Legal Event Code: PLFP

- Year of fee payment: 19

2016-02-29 [PGFP SE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: SE

- Ref Legal Event Code: PGFP

- Payment date: 20151028

- Year of fee payment: 18

2016-02-29 [PGFP AT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: AT

- Ref Legal Event Code: PGFP

- Payment date: 20150921

- Year of fee payment: 18

2016-02-29 [PGFP NL] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: NL

- Ref Legal Event Code: PGFP

- Payment date: 20151026

- Year of fee payment: 18

2016-02-29 [PGFP ES] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: ES

- Ref Legal Event Code: PGFP

- Payment date: 20151026

- Year of fee payment: 18

2016-02-29 [PGFP BE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: BE

- Ref Legal Event Code: PGFP

- Payment date: 20151027

- Year of fee payment: 18

2016-02-29 [PGFP FR] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: FR

- Ref Legal Event Code: PGFP

- Payment date: 20151019

- Year of fee payment: 18

2016-01-29 [PGFP DE] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DE

- Ref Legal Event Code: PGFP

- Payment date: 20151028

- Year of fee payment: 18

2016-01-29 [PGFP GB] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: GB

- Ref Legal Event Code: PGFP

- Payment date: 20151027

- Year of fee payment: 18

2016-01-29 [PGFP IT] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: IT

- Ref Legal Event Code: PGFP

- Payment date: 20151026

- Year of fee payment: 18

2016-01-29 [PGFP CH] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: CH

- Ref Legal Event Code: PGFP

- Payment date: 20151027

- Year of fee payment: 18

2015-12-31 [PGFP DK] POSTGRANT: ANNUAL FEES PAID TO NATIONAL OFFICE

- Ref Country Code: DK

- Ref Legal Event Code: PGFP

- Payment date: 20151026

- Year of fee payment: 18

2015-10-19 [REG FR PLFP] FEE PAYMENT

- Ref Country Code: FR

- Ref Legal Event Code: PLFP

- Year of fee payment: 18

2011-07-15 [REG CH PCAR] CHANGE OF THE ADDRESS OF THE REPRESENTATIVE

- Ref Legal Event Code: PCAR

- Free Format Text: NOVAGRAAF SWITZERLAND SA;CHEMIN DE L'ECHO 3;1213 ONEX (CH)

2010-07-15 [REG CH PFA] NAME/FIRM CHANGED

- Owner name: DOLBY LABORATORIES LICENSING CORPORATION

- Ref Legal Event Code: PFA

2002-12-04 [26N] NO OPPOSITION FILED

- Ref Legal Event Code: 26N

2002-03-25 [REG DK T3] TRANSLATION OF EP PATENT

- Ref Legal Event Code: T3

2002-03-01 [REG ES FG2A] DEFINITIVE PROTECTION

- Ref Legal Event Code: FG2A

- Ref Document Number: 2165196

- Country of Ref Document: ES

- Kind Code of Ref Document: T3

2002-01-24 [REF] CORRESPONDS TO:

- Ref Legal Event Code: REF

- Ref Document Number: 69802958

- Country of Ref Document: DE

- Date of Ref Document: 2002-01-24

2002-01-18 [ET] FR: TRANSLATION FILED

- Ref Legal Event Code: ET

2002-01-01 [REG GB IF02] EUROPEAN PATENT IN FORCE AS OF 2002-01-01

- Ref Legal Event Code: IF02

2001-12-14 [REG CH EP] ENTRY IN THE NATIONAL PHASE

- Ref Legal Event Code: EP

2001-12-14 [REG CH NV] NEW AGENT

- Ref Legal Event Code: NV

- Representative's name: WILLIAM BLANC & CIE CONSEILS EN PROPRIETE INDUSTRI

2001-12-12 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB IT LI NL SE

2001-12-12 [REF] CORRESPONDS TO:

- Ref Legal Event Code: REF

- Ref Document Number: 210880

- Country of Ref Document: AT

- Date of Ref Document: 2001-12-15

- Kind Code of Ref Document: T

2001-03-21 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010208

2000-08-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000414

2000-08-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH DE DK ES FR GB IT LI NL SE